At Harold's Used Auto Parts Inc in Philadelphia, PA, we recommend always making it a priority to change your oil on time. Here’s a look into why it’s so important, and what happens if you don’t keep up with oil changes.

Sludge - If oil stays in an engine too long, sludge begins to build up anywhere oil can go. The oil absorbs tiny debris and contaminants, kind of like a liquid sponge - once it’s at capacity, that oil begins to stick, clog, and build up throughout the engine. Small veins that carry oil to components like actuators, turbos, and bearings will become blocked, starving critical components of oil and causing component or engine failure.

Do you hear a funny clicking sound when you turn the wheels of your vehicle? It could be your car or truck's CV or Drive Axle, and it may be in need of repair. Safety is the number one priority for our customers here at Harold's Used Auto Parts Inc, and it is our goal to keep your vehicle running smoothly. Driving around with a damaged CV Joint or Drive Axle problem can be extremely dangerous. The axle is a structural component that bears the weight of the vehicle, any cargo, and the acceleration forces between you and the ground. It is so important to have your vehicle inspected regularly by a trained automotive repair professional here at Harold's Used Auto Parts Inc to ensure its safety.

Sometimes your car, truck, or SUV stops performing quite like it used to. At Harold's Used Auto Parts Inc in Philadelphia, we can fix that. A simple but common issue on vehicles equipped with a manual transmission is shifter bushing issues. Your shifter has a bushing on the end of it, where it connects to the actual transmission. Its purpose is to provide tight, smooth shifting. 

At Harold's Used Auto Parts Inc in Philadelphia, routine maintenance and repair isn’t the only thing we do. For custom parts installation, you can also count on us. Common modification enthusiasts do is swapping to a short-throw shifter; but what actually is a short-throw shifter, and what does it do?

You’ve probably heard the term “transmission flush” before at some point in your automotive experience. But what exactly does it mean to have your transmission flushed, and why does it matter? Harold's Used Auto Parts Inc in Philadelphia, PA has the answers.

At Harold's Used Auto Parts Inc in Philadelphia, PA, we know buying a used car, truck, or SUV can be a gamble. While there are no guarantees, there are key points of inspection that tell us a lot about the condition of a vehicle and how it has been maintained. There are some important points of the inspection we verify when checking out a used vehicle.

At Harold's Used Auto Parts Inc in Philadelphia, we know that few problems are simultaneously as simple and confusing as a bad ground connection on your car, truck, or SUV. Here’s a look at some symptoms of a bad ground, and what you can do to correct it.

The best way to deal with a blown tire is to prevent it from happening in the first place. However, eventually, a flat tire is going to occur, and it’ll most likely be when you least need it. From Harold's Used Auto Parts Inc in Philadelphia, PA, here’s what you need to do.

All the lights on your vehicle have an important job to do. Brake lights, tail lights, blinkers, reverse lights, and headlights are a crucial part of driving. Lights make you visible, make things visible to you, and allow you to communicate with other drivers. All of a vehicle’s lights make driving easier and safer, and all of them are important...not to mention legally required.

In the market for a new car, truck, or SUV? Used cars aren’t always what they seem; here’s some advice from Harold's Used Auto Parts Inc in Philadelphia to make sure you get the used car of your dreams.

At Harold's Used Auto Parts Inc in Philadelphia, we change many tires that should’ve been replaced long ago. Your tires can go for miles and miles, but there always comes a time to replace them. So how can you tell when the right time is?

Chances are you don’t pay much attention to your vehicle’s battery until it dies, when you get to perform the dreary dual task of waiting for a jump while simultaneously calling for an appointment to get a new battery fitted. Of course, that’s if you’re sure it’s the battery that’s dead in the first place. The only way to be certain is to take it in to be tested. However, it generally helps to know the health of your vehicle battery prior to finding yourself stranded.

Tire rotations are a part of vehicle maintenance. The purpose of rotating your tires is to make them last as long as possible, prevent your suspension from wearing out prematurely, and keep the drivability of your car in the best possible condition. So when should you get a tire rotation?

Routine maintenance keeps your fleet trucks safe on the road and protects you against unplanned trips to your local automotive shop! One thing a lot of people forget about is to have their coolant flushed. Harold's Used Auto Parts Inc in Philadelphia, PA will help you make sure your fleet vehicle is properly flushed every time!

At Harold's Used Auto Parts Inc in Philadelphia, the history of cars is a huge topic of interest to us. Here’s an interesting piece of automotive trivia, from us to you.

There are multiple types of tires on the market for almost every car, truck, or SUV. Once you decide it's time to replace your tires, the choice can be overwhelming. The type of tire you want depends on a variety of factors, from climate to how you drive. At Harold's Used Auto Parts Inc in Philadelphia, PA, our technicians have been trained to help you make that choice. Here’s a short rundown of common street tires that will suit your needs.

Transmissions are complex, and over time they will wear out and eventually break. Knowing what to look for will play a key role in preventing your transmission from failing prematurely. At Harold's Used Auto Parts Inc in Philadelphia, PA we want to give you some insight on how your transmission works and how it can fail.

Manual transmissions are durable, reliable pieces of equipment. Still, sometimes problems arise. Harold's Used Auto Parts Inc in Philadelphia has the answer to a question that plagues many manual transmissions; why does my transmission pop out of gear?

Cars, trucks, and SUVs use and create multiple liquid substances. Here’s what you need to know about the puddle of liquid under your vehicle, from Harold's Used Auto Parts Inc in Philadelphia, PA. There are a few different substances that can pool under an automobile, and some are more serious than others. Knowing what to look for and what to do could save you from hassle with your vehicle in the long run. 

At Harold's Used Auto Parts Inc in Philadelphia, we know how annoying a dead battery can be. Here’s some information on the subject, that will hopefully help you understand your battery issues a little better.  If your battery dies after your car, truck, or SUV sits for a few hours, the battery itself isn’t necessarily the problem. While having the battery tested is a good place to start, many people mistakenly make a bad battery diagnosis, when actually something in the electrical system is to blame.